ABAP Select data from SAP table RCF_S_BGC_MESSAGE_CAND_DATA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RCF_S_BGC_MESSAGE_CAND_DATA table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to RCF_S_BGC_MESSAGE_CAND_DATA. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the RCF_S_BGC_MESSAGE_CAND_DATA table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_RCF_S_BGC_MESSAGE_CAND_DATA TYPE STANDARD TABLE OF RCF_S_BGC_MESSAGE_CAND_DATA,
      WA_RCF_S_BGC_MESSAGE_CAND_DATA TYPE RCF_S_BGC_MESSAGE_CAND_DATA,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <RCF_S_BGC_MESSAGE_CAND_DATA> TYPE RCF_S_BGC_MESSAGE_CAND_DATA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RCF_S_BGC_MESSAGE_CAND_DATA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RCF_S_BGC_MESSAGE_CAND_DATA
  INTO TABLE IT_RCF_S_BGC_MESSAGE_CAND_DATA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCF_S_BGC_MESSAGE_CAND_DATA
*  INTO TABLE @DATA(IT_RCF_S_BGC_MESSAGE_CAND_DATA2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_RCF_S_BGC_MESSAGE_CAND_DATA INDEX 1 INTO DATA(WA_RCF_S_BGC_MESSAGE_CAND_DATA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RCF_S_BGC_MESSAGE_CAND_DATA ASSIGNING <RCF_S_BGC_MESSAGE_CAND_DATA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCF_S_BGC_MESSAGE_CAND_DATA>-CAND_PERS_DATA = 1.
<RCF_S_BGC_MESSAGE_CAND_DATA>-FORMOFADDRESS = 1.
<RCF_S_BGC_MESSAGE_CAND_DATA>-FIRSTNAME = 1.
<RCF_S_BGC_MESSAGE_CAND_DATA>-LASTNAME = 1.
<RCF_S_BGC_MESSAGE_CAND_DATA>-MIDDLENAME = 1.

ENDLOOP.

LOOP AT IT_RCF_S_BGC_MESSAGE_CAND_DATA INTO WA_RCF_S_BGC_MESSAGE_CAND_DATA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCF_S_BGC_MESSAGE_CAND_DATA-SECONDNAME, sy-vline,
  WA_RCF_S_BGC_MESSAGE_CAND_DATA-FULLNAME, sy-vline,
  WA_RCF_S_BGC_MESSAGE_CAND_DATA-BIRTHNAME, sy-vline,
  WA_RCF_S_BGC_MESSAGE_CAND_DATA-NICKNAME, sy-vline,
  WA_RCF_S_BGC_MESSAGE_CAND_DATA-PREFIX1, sy-vline,
  WA_RCF_S_BGC_MESSAGE_CAND_DATA-TITLE_ACA1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCF_S_BGC_MESSAGE_CAND_DATA you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_RCF_S_BGC_MESSAGE_CAND_DATA TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_RCF_S_BGC_MESSAGE_CAND_DATA INTO WA_RCF_S_BGC_MESSAGE_CAND_DATA.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit SXIDN, internal->external for field E_MAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_BGC_MESSAGE_CAND_DATA-E_MAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_BGC_MESSAGE_CAND_DATA-E_MAIL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_BGC_MESSAGE_CAND_DATA-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_BGC_MESSAGE_CAND_DATA-LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCF_S_BGC_MESSAGE_CAND_DATA-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCF_S_BGC_MESSAGE_CAND_DATA-LANGU.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RCF_S_BGC_MESSAGE_CAND_DATA_STR, 
CAND_PERS_DATA TYPE STRING,
FORMOFADDRESS TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
MIDDLENAME TYPE STRING,
SECONDNAME TYPE STRING,
FULLNAME TYPE STRING,
BIRTHNAME TYPE STRING,
NICKNAME TYPE STRING,
PREFIX1 TYPE STRING,
TITLE_ACA1 TYPE STRING,
TITLE_ACA2 TYPE STRING,
TITLE_SPPL TYPE STRING,
BIRTHDATE TYPE STRING,
BIRTHPLACE TYPE STRING,
SEX TYPE STRING,
MARITALSTATUS TYPE STRING,
NATIONALITY TYPE STRING,
NATIONALITYISO TYPE STRING,
NAMCOUNTRY TYPE STRING,
NAMCOUNTRYISO TYPE STRING,
EMPLOYER TYPE STRING,
CAND_CONTACT_DATA TYPE STRING,
TELEPHONE TYPE STRING,
EXTENSION TYPE STRING,
MOBILE_PHONE TYPE STRING,
TEL_NO TYPE STRING,
FAX TYPE STRING,
E_MAIL TYPE STRING,
LANGU TYPE STRING,
LANGU_ISO TYPE STRING,
COMPANY TYPE STRING,
CAND_ADDRESS_DATA TYPE STRING,
CHANNEL TYPE STRING,
CHANNEL_DESCRIPTION TYPE STRING,
STREET TYPE STRING,
STREET2 TYPE STRING,
PO_BOX TYPE STRING,
CITY TYPE STRING,
REGION TYPE STRING,
COUNTRY TYPE STRING,
COUNTRYISO TYPE STRING,
POSTCODE TYPE STRING,
LANGU TYPE STRING,
LANGU_ISO TYPE STRING,
WORK_EXPERIENCE_DATA TYPE STRING,
EDUCATION_DATA TYPE STRING,
QUALIFICATION_DATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-CAND_PERS_DATA sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-FORMOFADDRESS sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-FIRSTNAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-LASTNAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-MIDDLENAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-SECONDNAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-FULLNAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-BIRTHNAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-NICKNAME sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-PREFIX1 sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-TITLE_ACA1 sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-TITLE_ACA2 sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-TITLE_SPPL sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-BIRTHDATE sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-BIRTHPLACE sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-SEX sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-MARITALSTATUS sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-NATIONALITY sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-NATIONALITYISO sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-NAMCOUNTRY sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-NAMCOUNTRYISO sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-EMPLOYER sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-CAND_CONTACT_DATA sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-TELEPHONE sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-EXTENSION sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-MOBILE_PHONE sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-TEL_NO sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-FAX sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-E_MAIL sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-LANGU sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-LANGU_ISO sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-COMPANY sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-CAND_ADDRESS_DATA sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-CHANNEL sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-CHANNEL_DESCRIPTION sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-STREET sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-STREET2 sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-PO_BOX sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-CITY sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-REGION sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-COUNTRY sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-COUNTRYISO sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-POSTCODE sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-LANGU sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-LANGU_ISO sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-WORK_EXPERIENCE_DATA sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-EDUCATION_DATA sy-vline 
WA_RCF_S_BGC_MESSAGE_CAND_DATA_STR-QUALIFICATION_DATA sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.